I remember that we exchanged few posts about a month or so ago on... sugar. Going long into the front contracts in sugar or cotton is extremely... let's say brave. The prices for sugar are at a 30-year high and for cotton all time high. They may go even higher and you may make money but, personally, I would feel better going short when these record prices start to unwind, and they will. Unlike gold or oil, these commodities can be grown from dirt .
What I am really trying to say is listen to the chart (not the chatter) and be ready to bail out taking a loss if the unwinding begins in earnest. As trades poinet out, there were three warnings and the last one might have killed the rat.